Electric-wire conduit for buildings.



L. ADLER.

ELECTRIC WIRE GONDUIT FOR BUILDINGS.

APPLICATION FILED APRv 23. 1913.

1, 1 91 44, Patented Dec. 15. 1914.

d 62/ Louis Adler, awventoz 351 118 G/HQMQ M York, in the county of LOUIS ADLER, or NEW YORK, N. Y.

ELECTRIC-WIRE connnrr non BUILDINGS.

Be it lmown that I, LOUIS ADLER, a citizen of the United States, and residing at New New York and State of New York, have invented certain new and useful Improvements in Electric-Wire Conduits for Buildings, of which the following is a specification, such as will enable those skilled in the art to to make and use the sam This invention relates to electric wire conduitsand appliances for buildings, and the object thereof is to provide an improved conduit of thisclass and improved means for securingthe same tothe inner walls and ceilings of buildings of any kind or class; a vfurther object being to provide a conduit of the class specified which, instead of being circular in cross section, is oblong or elliptical and presents a better appearance and is easier to install and'more perfect mechanically and electrically when secured in position, than a conduit of circular form in cross section, a further object being to provide a conduit of theclass specified whichis made i of sheet metal and open longitudinally at.

one side so thatelectric wires can be dropped 'there'in'to a'ndthe conduit closed in the operation of securingthe for securingtheconduit to a wall or-other support being also adapted to close the con- *-duit orthe longitudinal opening therein.

My invention also involves an improved orm'of junction or outlet box designed par-.

*ticularly forfuse' inconnection with my im- -proved conduit "or conduits, and said inven 1 tion is fully disclosed in the following speciform's-apart, in which the separate parts of e characters in each of the views,

' l V Figure l is a'view" showing my improved conduit, junction boxes, and the method of,

or means for,"jsecurin'g"the same to thewalls of a-building;f'Fig. 2 a transverse sectional i -view through therewith, andon the line 2-2 of Fig.- '3:

-:;-Fig.""'3 a sectionon the line of Fig. 2.

' -.-Fig. 4a.; section through a conduitbracket or support which-Iem'ploy, the "section being on the-lineHofF'g. 5,"andshowii1g the.

means forse'curing the bracketorsuisport'to Specification of Letters Patent.

which it appertains same to a wall or ceiling," or othersupp'ort, the means employed tang'ular in form, on'ofthe junction boxes and i showing the-method of connecting a conduit I tipnsc 'of the lock Patented Dec. 15, 1914.

' Application filed April 23, 1913. Serial No. 763,013.

a wall,' Fig.-5 a plan view ofthe construction shown in Fig. 4 and looking in the d rection of the arrow 5;Fig, 6 an end View of one of my improved conduits and showing it open ;Fig. 7 a View similar to Fig. 1- of a bracket or support but showing a 7 modified means for securing the bracket or support to a wall, and ;Fig. 8 a plan view of the construction shown in Fig. 7 and looking in the direction of the arrow 8.

In the practice of my invention, I provlde a conduit a which is composed of sheet metal and is oblong or elliptical in cross section and open longitudinally at one of its narrower sides, as shown at o The conduit a at its open side is provided with overlapping fianges a and opposite said flanges or said openside, and in the interior surfaces thereof is a longitudinal groove a which weakens said conduit so that the side portions thereof may be easily opened and closed. For the purpose of connecting the conduit a. with a wall 6 and ceiling- 6 or other support, I provide U-shaped brackets 0 also composed of sheet metal and one of which is shown in Figs. 4 and 5, and a modified form in Figs. 7 and-8.

The bracket 0, shown in Figs. 4 and 5, is provided at one side with projecting lock plates or members 0 the free ends of which are tapered on their inner sides, and said lock plates or members are provided in their outer sides at a predetermined point from the side of the U-shaped bracket 0 with transverse recesses c which enable the free end portions thereof to be bent outwardly, as shown in dotted lines. The side of the U-shaped bracket 0, opposite that with which the lock plates or members 0 are connected, is provided with an tice,'a screw 0 is passed through the apertiire wand-through a corresponding aperture in the opposite side of the bracket 0 and out between the lock plates or members 12 and a nut c is mounted on the end'of nut c is preferably recas clearly shown in Fig. 5, and the opposite sides thereof are preferably recessed to receivethe tapered end porplates or members a, and byiturnin'g the screw 0 by means of a'suitable'rinstrument passed through the aperturesze g the nut cr'nay be'drawn inwardl andthe end portions c platesor said screw. 7 The members-a expanded.

aperture 0, and in prac-' receive In the use of fastening devices of this class, the wall b is provided with recesses to locking parts of the bracket or brackets 0, which locking parts are inserted into said recesses after which the screws 0 are turned so as to expand the lock plates or members 0 and in this way the bracket or brackets are secured to the wall or support after which the conduit or conduits a are dropped thereinto. After the bracket or brackets have been secured to the wall and ceiling, shown and described, the conduit or conduits a are dropped thereinto, after which the wires, cables or conduits may be dropped thereinto, and the side portions 0 of the U-shaped brackets are drawn together and secured together by passing a screw or screws 0 therethrou h, which operation draws the side portions of the brackets together and also draws the side portions of the conduit or conduits together, as clearly shown in Fig. 4. j i

The bracket shown in Figs. 7 and 8 is exactly the same, as shown in Figs. 4 and 5, but the means for securing said bracket to the wall are different and are specially designed for use in connection with plaster, concrete, or similar walls and ceilings. this form of construction, I secure to one side of the U-shaped bracket, as shown, a short tube d preferably provided ad acent to the bracket with an. annular groove (1 and the said tube is slotted longitudinally at four different points to form tongues 1 and the ends of the tube cl are cut off between said tongues, as shown at 11 and the end portions of said tongues are curved inwardly, as shown at 1 and in practice, a screw d is used inthe same manner as the screw 0 in Fig. 4 to extend the tongues (1 as shown in dotted lines in Fig: 7, for the purpose of securing the U-shaped brackets to the wall.

having three different styles of covers which are shown in Fig. 1 at e, e and a The junction box at e is an ordinary inlet box having a switch cover device a and that at e an ordinary branch junction box, while that shown at 0 has a socket junction box cover, and the box 6 is secured to the wall I),

while the boxes e and e are secured to a" ceiling, and suspended from the box 6 is a flexible hanger f for-supporting an electric light, but my invention is not limited to any particular arrangement of the junction oxes.

One of the junction boxes, that shown at 0 is shown in section in Fig. 2, and is provided at 'ts opposite sides with couplings g with which the conduit orconduits a may be connected and two of said conduits are shown so connected.

The couplings g are open atone side for or other support, in the manner a part of their lengths, as shown at 9 and are provided with ears 9, and said couplings are provided at one end with flanges -9 adjacent to which are annular grooves g inner sides of the side walls of the boxes,

and in practice, the conduits a are dropped into the open couplings g and moved inwardly so that the ends thereof abut against the ribs 9 after which the said conduits are 'secured in said couplings by passing screws or bolts h through the ears g.

The conduit or conduits a, the U-shaped brackets c and the couplings g are-preferably composed of sheet metal and possess boxes are'provided with demore or less elasticity, but other material may be employed, if desired.

My improved junction box or boxes may be used as a branch off box to mount any standard fitting, such as a receptacle, as

.a snap switch attachment, plug or socket,

or as an outlet box for hanging or suspending any kind of a fixture, or as a rosette for a cord drop light, all of which uses are rendered possible by means of the difierent styles of covers for the boxes, which are, or may be provided, said covers being detachable and interchangeable.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is j 1. The herein described devices for use in electrically wiring a building, comprising My invention also involves junction boxes conduits composed of flexible material and longitudinally of one of their narrower sides, U-shaped brackets composed of flexible material and adapted to receive said conduits, means for drawing and securing the sides of the U-shaped brackets together so as to compress the conduits therein and close the longitudinal opening in one side thereof, and means for securing said brackets toa wall or other support.

2. The herein described device for use in electrically wiring a, building comprising conduits offlexible material and of greater diameter in one direction than the other and open lon'gitudinally of one of their narrower sides, and attaching devices adapted to be secured to or in a wall or other support and having U-shaped members composed of flexible material and adapted to receive said conduits, and ineans for drawing and seeuring the sides of the U-shapecl mempresence. of the subscribing this bers together so as to compress the con- 19th day of April 1913. duits therein and close the longitudinal opening in one side thereof. Witnesses: Y 6 In testimony that I claim the foregoing C. MULREANY, as my invention I have signed my. name in S. Ammsws.

LOUIS ADLER. 

